NHTSA Complaint #11649783 — 2015 KIA SOUL

The component that malfunctioned is the catalytic converter, which became clogged due to excessive oil consumption from the engine. The oil consumption likely resulted in oil entering the exhaust system and contaminating the catalyst, causing it to lose its efficiency. The dealer replaced the engine but failed to inspect and replace the catalytic converter, which was clogged due to oil consumption from the engine. Yes, the catalytic converter is available for inspection and can be physically examined by a mechanic or technician to confirm the issue. The clogging of the catalytic converter resulted in poor engine performance, to include reduced acceleration, high rough idling and risk of fire. This lead to dangerous driving conditions, the vehicle stalled and had trouble accelerating. The issue of a clogged catalytic converter due to oil consumption has been confirmed by dealer. They performed diagnostic tests and read the vehicle's diagnostic trouble codes (DTCs) that indicated problems with the catalytic converter. No, the dealer relayed that they did not inspect the catalytic converter. Yes, I noticed symptoms prior to the catalytic converter clogging. Check engine light coming on. Reduced engine performance, sluggish acceleration. These symptoms occurred the day the vehicle became incapacitated. Rough idling was happening over time, during winter months.